126533203 has 8 divisors (see below), whose sum is σ = 127380528. Its totient is φ = 125689344.

The previous prime is 126533201. The next prime is 126533221. The reversal of 126533203 is 302335621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126533203 - 2¹ = 126533201 is a prime.

It is a super-2 number, since 2×126533203² = 32021302922878418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126533201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121975 + ... + 123007.

It is an arithmetic number, because the mean of its divisors is an integer number (15922566).

Almost surely, 2^126533203 is an apocalyptic number.

126533203 is a deficient number, since it is larger than the sum of its proper divisors (847325).

126533203 is a wasteful number, since it uses less digits than its factorization.

126533203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 126533203 is about 11248.6978357497. The cubic root of 126533203 is about 502.0359690739.

Adding to 126533203 its reverse (302335621), we get a palindrome (428868824).

It can be divided in two parts, 126533 and 203, that added together give a square (126736 = 356²).

The spelling of 126533203 in words is "one hundred twenty-six million, five hundred thirty-three thousand, two hundred three".